Roll-polishing machine



W. H. RITTBERGER.

ROLL POLISHING MACHINE.

APPLICATION FILED APII. 2|, 1919.

Patented Sept. 28, 1920.

3 SHEETS-SHEET l.

w. H. RITTBERGER.

ROLL POLISHING MACHINE.

APPLICATION FILED APR. 21, 1919.

Patented Sept. 28, 1920?;

3 ,SHEETS-SHEET 2.

W. H. RITTBERGER.

ROLL PoLIsHING MACHINE.

y APPLICATION FILED APR. 21, 1919. i 15.354,21 3 Patented Sept. '28,1920.

3 SHEETS-SHEET 3.

Q3 LO nventoz dnn,

saA

WILLIAM H. RITTBERG-ER, 0F GRANITE CITY, ILLINOIS.

ROLL-POLISHING' MACHINE.

Specification of Letters Patent.

Patented Sept. 28, 1920.

Application led .April 21, 1919. Serial No. 291,469.

To @ZZ whom t may concern.'

Be it known that I, VILLIAM H. RITT- BERGER, a citizen of the UnitedStates, residing at Granite City, in the county of Wadison and State ofIllinois, have invented certain new and useful Improvements in Roll-Polishing'Machines, of which the following is a specification, referencebeing had to the accompanying drawings.

This invention relates to means for polishing rolls, and particularly tomeans for polishing the rolls used for rolling metallic plates orsheets.

Generally speaking, the object of my invention is to provide mechanism'mounted in connection with rolling machines of the character describedwhereby to rub off the iron which gathers on the rolls from the bars orblanks being rolled. This iron forms pits in the sheets as they arebeing rolled unless the rolls are polished. At the present time, therolls are polished by the use of a pole carrying a polishing member ofemery on the extremity of the pole.

A further object of the invention is to provide a device for polishingthe rolls while they are in use, and in this connection to provide adevice for polishing the upper and lower rolls which may be shifted intoor out of an operative position and which, when in an inoperativeposition, will be entirely out of the way as far as the manipulation ofthe bars, blanks, or sheets go.

A further object in this connection is to provide a device of thischaracter wherein the polishing elements may be removed or replaced orcleaned when the carriers supporting the polishing elements are turnedinto their inoperative position, and in this connection to providecarriers for the polishing elements which are jointed so thatv the twosections may be folded back upon each other to an inoperative position.

It is a further object of the invention to provide abrasive elements forcontact with the'roll surfaces, a carrier for each of said abrasiveelements, and means for actuating the carrier to hold the abrasiveelement under pressure against the face of the roll, and manuallyoperable means for moving the abrasive element longitudinally of theroll.

A further object is to provide, for polishing each roll, a pair ofabrasive elements in the form of blocks adapted for contact with theroll surface, means for adjusting the blocks so that they shall properlyengage against the roll, and means for reciprocating the blocks orelements in relatively opposite directions against the roll.

A further object is to provide improved means for mounting the abrasiveelements, and Yprovide springs urging the abrasive elements against theroll, and -means for increasing or decreasing pressure of said springsas the necessities of the case may demand.

Other objects will appear in the course of the following description.

My invention is illustrated in the accom panying drawings, whereinFigure l is an end elevation of a rolling mill having my attachmentsapplied thereto, the attachments being shown in dotted lines;

Fig. 2 is a front elevation of the construetion shown in Fig. l;

Fig. 8 is a fragmentary vertical section of the constructions shown inFigs. l and 2;

Fig. 4 is a plan view of the polishing means for the lower roll;

Fig. 5 is a fragmentary perspective view of the inner end of thepolishing frame shown in Fig. 4;

Fig. 6 is a fragmentary perspective view of the inner end of-thepolishing frame shown in Fig. 3, and Fig. 62L is a detail of handle 34;

Fig. 7 is a fragmentary sectional view of the support for the polishingframe shown in Fig. l;

Fig. 8 is a sectional view of the annulus used for shifting this frame;

Fig. 9 is a sectional perspective view of a modified form of abradingelement; and

Fig. l0 is a fragmentary plan view of a modified form of theconstruction illustrated in Fig. 4.

Referring to the drawings, 5 uesignates the roll standards which aresuitabiy mounted upon a base or foundation 6. The rolls` designated 7and 8, are mounted in suitable bearings, at their opposite ends, in thestandards 5 and are further so mounted that they may be urged towardeach other. The construction of these rolls and the manner in which theyare mounted forms no part of the present invention, the illustrationbeing simply conventional to disclose the general arrangement andoperation of the polishing or abrading mechanism. i

Disposed between the front pair of standtransverse bolts 12 and 12; Sofar, the' rolling machine which I have described is that commonly found.

Coacting with the upper roll is a carriage which is composed of thelaterally disposed bars 14, which are spaced from each other a distanceapproximately equal to the distance between the front standards, theouter portions of these bars being inwardly deflected, as at 15, andformed with screw-threads for engagement with a nut 16. Beyond thisscrew-threaded portion, the outer endsof these bars are smooth and aredisposed loosely through sleeves 17, and bearing at one end against thesleeves 17 and at their opposite ends against the nut 16, are the coiledexpansion springs 18. These bars 14 are connected at then' outer. endsby means of a longitudinally extending rod or bolt 19, and inward ofthedeflection 15 by a longitudinally extending bolt 20. Looselysurrounding the brace rod 12 is a tubular member 21, and mounted thereonis an annular member 22 having an outwardly projecting arm 23 which ispivotally connected to the sleeve 17 and specifically to an ear 24projecting from this sleeve. Mounted upon the tubular member 21 and inconjunction with the member 22, is an annulus 25 having a plurality ofradial sockets for the insertion of a. lever 26 whereby it may berotated to thereby shift the sleeves 17 upon the bars 14. It will beunderstood that the tube 21 rotates upon the tie rod 12 and that thereare two of the parts 22 mounted upon this tube 21 and pivotally engagingwith the sleeves 17, but that there is only one annulus 25 provided withthe sockets for the reception of the operating lever. Fawls 27 aremounted. upon the inner faces of the pedestals or standards to engageratchet wheels mounted on the annular member and thus hold the member inits rotated position and hold the sleeves 17 projected to a greater orless extent. 1t will be seen that these sleeves bear against the spring18 and as a consequence, the adjustment of the tubular member willincrease or decrease the ten-v vsion of these springs, that is thepressure against the outer ends of the springs, and thus increase ordecrease the pressure with which the abrading elements, to be hereafterdescribed.` are forced against the roll 7. The nuts 16by reason of theiradjustment on the screwthreads of the portions 15, also control thepressure with which the abrading elements are to be forced against theroll. The inner ends of the bars 14L are formed with heads 28, theseheads being connected by Va screw 29 carrying reversely disposedscrew-threads. The screw 29 is rotatably mounted in the heads 28.Slidingly mounted on the rods 19 are carriers 30 and 31, the adjacentends of the carriers being beveled, as illustrated in Fig. 2, and thefaces of these carriers being each recessed for the reception of a block32 of emery or like abrading material, these blocks being held in placein the respective carriers by means of set screws or other suitableclamping devices. The inner faces of the blocks are somewhat concave soas to fit the surface of the upper roll. Mounted upon one end of thescrew 29 is a ratchet wheel 33, and operating in conjunction therewithis a removable handle 34 having doublel pawls 35, either of which may beshifted into engagement with the ratchet wheel. 1When one of these pawlsis shifted intoV engagement with the ratchet wheel, an oscillation ofthe handle or lever 34 will rotate the ratchet wheel and screw in onedirection, and when the ,other pawl is shifted into such engagement itwill rotate the screw in the opposite direction. The handle is formedwith a yoke 34a at one end loosely embracing the shaft 29 so that thehandle may be removed. l do not wish to be limited to the use o-f ascrew for Vthe purpose of laterally shifting the carriers, as they mightbe shifted by other manually operable means. Y

lt will be noted from Fig. 1 that the bars 14- are made Vin two sectionswith Va rule joint, vat 36, the transverse tie rod20 acting as the pivotfor this rule joint, as illustrated clearly in Fig. 3. The joint is suchthat the two sections of the bars 14k may be turned into alinement witheach other, but are prevented from further movement in this di rection,or the uppeil Qection may be turned outward and downward to the positionshown in full lines in Fig. 3, in which position the section will bebelow the table 9.

lt will further be noted that when the upper section a is turneddownward and outward to its inoperative position, the lower section 5still remains in place. The lower section of each of the bars 14 isformed, as at 37, to rest on downwardly extending lugs 38 carried by thecross bar 11, these lugs being disposed at the ends of the cross bar 11adjacent the pedestals or standards 5. fr wheel 39 is also mounted uponthe standard or pedestal 5, and the upper end of each section a has awedging engagement with these wheels so as to wedge the abrading blocksinto contact with the roll. It will be obvious that byV shifting thecarriage formed by the bars 111 and the tie rods 19 and 20.y etc.,downward against the force of. the springs 18, that the upper ends of.pivoted by means of a transverse rod 41 4which are used for polishingor abrading the lower roll 8. This carriage (as shown in Fig. 4)isc'ompos'ed of the parallel bars 40 which are formedvin two sections aand b 7 these sections having a rule oint. The outer section b has astraight portion 42 which is screw-threaded for aA portion of its lengthto carry a nut 43, and this section has sliding engagement through thesleeve 44 corresponding in all. respects to the sleeve 17.

ASprings 45 urge the bars 40 outward and the abrading elements 'againstthe rolls. The sleeves 44 are adjustable against the springs 45 by meansoffannuli 46 carried upon 'the tubular members 47 surrounding the tierod 13, these members 46 being each a projecting arm which is 'pivotallyconnected to the sleeve 44 in the manner heretofore described. Mountedupon the tubular member 47 is a wheel 48 having sockets, as beforedescribed, with relation to the member 25, whereby an operating rod orhandle may be inserted. A pawl is mounted upon the inside i face ofthestandard to engage the member 48 and hold it in adjusted position.

It will be noted from Fig. 1 that the carriage for the lowerv abradingelement is disposed in a horizontal plane when in operative positioninstead of being disposed upward and inward, as is the carriage for theabrading element of the upper roll, but except for this and except thatI use a ldifferent manner of mounting andshifting the abrading elements,the construction of the carriage for the lowerabrading elements 1s thesame as that for the upper abrading elements.

The sections a of the bars 40 lare expanded to form heads 49, theseheads being joined by a pair of cross rods 50. Slidingly mounted uponthesecross rods are the carriers 51, which carry the abrading elements52, preferably blocks of yemery, these blocks being clamped in place bya set screw. Each of these carriers has a downwardly extending 'stem 53.

Clamped upon the tie rod 41 is a supporting bracket 54 having bearingsor stub shafts 55 for intermeshing sector gears 56. One of these sectorgears V56 is provided with a handle 57 and each of these sectorgears isprovided with an outwardly extending arm 58 which is `connected by alink 59 to the corresponding stem 53. It will be obvious from F ig. 4that by oscillating the handle 57, the abrading `elements may bereciprocated toward or from each other, and that when so reciprocated,these abrading lelements will move over, the surface of the lower roll,inasmuch as the carriage shown in Fig. 4 is used for the lower roll anddisposed onthe rear side thereof, there is no reason why means shouldnot be used for reciprocating the abrading elements, which means extendsinto the space between the bars 40, but with the roll for the uppercarriage, however, it is desirable that the least possible mechanism beused so as to interfere as little as possible with the proper operationand use of the rolling machine.

It will be obvious from Fig. 4that the section a of the carriage usedfor the lower roll may be turned over as illustrated in dotted lines inFig. 1 so as to get it entirely out of the way and the abrading elementout of contact with the roll.

lVhile I have illustrated in Figs. 1 to S'an abrading' element which isformed of a block of emery or other abrading substances, it is to beunderstood that I do not wish to be limited to this, and in Fig. 9 Ihave illustrated a block or element designated 52L which is formed ofhard tool steel, the block being formed with a plurality oflongitudinally extending-kerfs 60, each kerf terminating and discharginginto a longitudinally extending passage 61. -The corners formed by theintersection of the kerfs with the concave face of the abrading elementform cutters which will cut the scale or particles of iron off the rollsand the dust caused by this cutting or abrading action will bedischarged into thekerfs and so into the longitudinally extendingpassages 61.

In the use of this device, when it is desired to clean the rolls offoreign matter, the sections a of the upper and lower carriage may beturned over so as to bring these sections in alinement with the sections5, and that under these circumstances, the springs 18 and 45 will urgethe abrading elements againstthe'faces of the rolls with a forcedepending upon the adjustment of the sleeves 17 and 44. Now if the rollsare rotating and the abrading elements being reciprocated as byoscillating the lever 34 or the handle -57,the surfaces of the rollswill be submitted to an abrading action which will very readily cleanthem. As soon as the rolls are cleaned, the sections a may be turnedback to their inoperativepositions and the work proceeded with. Ofcourse, it will be understood that the table `9 is removed when thecarriage for the abrading element of the upper roll is in operation andthen replaced when this carriage has been folded back to an inoperativeposition. `It will also be seen that when the rolls are removedfrom thehousing, that is from the pedestals or standards, the rods 12 and 13 areremoved and thus my cleaning mechanism is removed with these rods, thesetie rods acting as the sole support for the cleaning mechanism exceptforr the support which the cleaning mechanism for the upper roll to bethoroughly effettive in practice, yet

it will be obvious that many changes might be made 1n the details ofconstruction and Varrangement of parts without departing from the spiritof the invention.

Thus, in Fig. 10 I have illustrated a modified construction of the meansfor oscillating the abrading elements from the lower roll, which isconstructed in the same manner as the construction shown in Fig. 4, butin y'which the gear wheels 56 are omitted. In

place thereof, I provide a lever 63 pivoted upon the supporting member54 and connected by a link 64; to the shank 53 of one of the abradingelements 52, this lever 63 outward of its pivot being connected by alongitudinally extending link 65 to a link 6G pivoted to the support 54-and connected by a link G7 to the other abrading element. By oscillatingthe handle of the lever 63 an oscillation will lbe communicated to theabrading elements 52 in opposite directions.

I yclaimzl l. A polishing mechanism for metal rolls including a supportformed in foldable sections, a longitudinally movable abrading elementmounted on the support, manually operable means for moving said abradingelement longitudinally against the surface of the rolls, and resilientmeans for urging the abrading element against the roll.

2. A polishing mechanism for metal rolls including a support formed intwo sections, one of said sections being pivoted to the other formovement into folded relation, an abrading element mounted on thesupport for longitudinal movement, and manually 'operable meansdetachable from the carriage for moving said abrading elementlongitudinally against the surface of the roll.

including a support formed in sections and adapted to be folded uponeach other, a longitudinally movable abrading element mounted on thesupport, manually operable means for moving said abrading elementlongitudinally against the surface of the roll, resilient means forurging the abrading element against the roll, and, adjustable means forincreasing or vdecreasing the pressure of said resilient means.

il. In a rolling mill, coacting rolls and a housing therefor, aremovable table mounted uponthe housing whereby blanks may be directedbetween the rolls, and means for polishing the upper roll comprising acarriage, a longitudinally reciprocatable abrading element mounted uponthe carriage and adapted to have contact with the upper roll,

and means for reciprocating said abrading element, the -carriage beingformed in two 3. A polishing mechanism for metal rolls` sections pivotedto each other whereby the" upper section carrying the abrading elementmay be turned back upon the lower section to a position beneath saidtable.

In a rolling mill, vthe combination with two coacting rolls and ahousing therefor, of a tie rod extending across the housing, a tubularelement mounted upon the tie rod,

sleeves operatively mounted upon the tubu- Y' lar element and extendingat right angles thereto, laterally disposed bars having their outer endsloosely inserted in said sleeves, springs disposed between thesleeves,and shoulders on the bars urging the bars outward, tie rodsconnecting the bars, longitudinally reciprocatable abrading elementsoperatively supported upon said bars for sliding movement against theface of a roll, and manually operable means for reciprocating saidabrading elements.

6. In a rolling mill, the combination with two coacting rolls and ahousing therefor, of e a tie' rod extending across the housing, a

tubular element mounted upon the tie rod, sleeves operatively mountedupon the tubular element and extending at right angles thereto,laterally disposed bars having their Y outer ends loosely inserted insaid sleeves, springs disposed between the sleeves, and shoulders on thebars urging the bars outward, said shoulders being adjustable on sleeveshaving ears, members mounted upon the tubular member and having armspivoted to said sleeves', manuallyV operable means for rotativelyadjusting the tubular member, shoulders on the bars urging the barsoutward, said shoulders being adjustable on the bars, tie rodsconnecting the bars, longitudinally reciprocatable abrading elementsoperatively supported upon said bars for sliding movement against theface of a roll, and manually operable means for reciprocating saidabrading elements.

8. In a roll polishing device, the combination with a rolling millhaving a housing, a pair of supporting members mounted upon the housing,veach supporting member being formed in two sections, one of thesections being pivoted to the other so that said last named section maybe folded over with relation to the first named section, a transvversemember carried 'by said last named ing members longitudinally upon saidtransverse member.

9. In a roll polishing device, the combination with a rolling millhaving a housing, a pair of supporting members mounted upon the housing,each supporting member being 'formed in two sections, one of thesections being pivoted to the other so that said last named section maybe folded over with relation to the first named section, a transversemember carried by said last named pivoted sections, abrading memberscarried upon said transverse'member, and manually operable means forreciprocating said abrading members longitudinally upon said transversemember, resilient means urging said members toward the roll with whichthe abrading member coacts, and means for increasing or decreasing thetension of said resilient means.

l0. The combination with the upper and lower rolls of a rolling mill anda housing therefor, of supporting members mounted on the housing andheld from movement parallel to the rolls, there being a pair ofsupporting members for each roll, each supporting member formed infoldable sections, an abrading element mounted on the uppermost sectionof each supporting member for movement relative to the supporting memberparallel to the face of the corresponding roll, and means forreciprocating each abrading element against the surface o1" thecorresponding roll.

1l. The combination with the rolls of a rolling mill and a housing inwhich the rolls are mounted, of a supporting member mounted upon thehousing and formed in two sections pivoted to each other so that thesection nearest the roll may be folded over with relation to the sectionfarthest from the roll, said supporting member being held from anylongitudinal movement parallel to the roll, an abrading member carriedupon the section nearest the roll and engageable against the face of theroll, and manually operable means for reciprocating said abrading memberparallel to the face of the roll.

In testimony whereof I hereunto aiiix my signature in the presence oftwo witnesses.

VVI-LLIAM H. RITTBERGIJR.k

Witnesses A. B. I-IE'rriCH, J. ENELSON.

